2012 BMW 640 review
See also:
Close the windows and glass sunroof
Driving with the glass sunroof and windows
open results in increased air resistance and
raises fuel consumption. ...
Automatic deactivation during forward
travel
The system switches off when a certain driving
distance or speed is exceeded.
Switch the system back on if necessary. ...
Malfunction
The small warning
lamp flashes in yellow
and then lights up continuously;
the larger warning lamp comes on in
yellow. On the Control Display, the
tires are shown in gray and a message appear ...
